Oil fuel feed device



Aug. 27, 1935. J. E. BLANDING OIL FUEL FEED DEVICE Filed Sept. 12, 1955 2 Sheets-Sheet 1 Iinventor Gttornegs.

Aug. 27, 1935. J. E. BLANDING OIL FUEL FEED DEVICE FiledSept. 12, 1935 2 Sheets-Sheet 2 ZZZ 3n Patented Aug.- 27, 1935 PATENT OFFICE OIL FUEL-FEED DEVICE Joseph Edward Blanding, New London, Conn., assignor of one-half to Patrick B. McNamara,

Groton, Conn.

Application September 12, 1933, Serial No. 689,136

3 Claims.

This invention relates to internal combustion engines, and more particularly to internal combustion engines wherein heavy oil is used as a fuel.

An important object of the invention is to provide means for feeding and treating oil to render the same readily combustible, to insure the firing of the engine or motor by compression, although it is tobe understood that the charge entering the cylinder, may be fired by the use of the usual ignition system, wherein spark plugs are employed for firing the charge.

Another object of the invention is to provide a fuel groove in the valve seat of the valve controlling the passage of oil into the mixing cham-- ber of the device, thereby insuring an even distribution of oil in the mixing chamber, at all times.

A still further object of the invention is to provide a device of this character having means whereby .an accurate adjustment of the valves with respect to each other, may be had, to insure the efliciency ofthe engine.

With the foregoing and other objects in view,

which will appear as the description proceeds,

.the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention.

Referring to the drawings:

Figure 1 is a fragmental sectional view through an engine hea'd, showing a device constructed in .accordance with the invention as installed thereon.

Figure 2 is a plan view thereof.

Figure 3 is a side elevational view thereof, parts being shown in section.

Referring to the drawings in detail, the reference character 5 designates an engine cylinder, and the reference character 6 designates the head of the cylinder, which is supplied with the usual passageways for the fluid.

"The head 6 of the engine, is supplied with an opening indicated at l, which opening is of a diameter to receive the body portion 8 of the attachment forming the essence of the invention.

As clearly shown by Figure 1 of the drawings, the body portion 8 is provided with a reduced end 9, which is formed with an offset lower ex tremity defining a shoulder that cooperates with provide orifices through which fuel passes into the cylinder 5. Thus it will be seen that the fuel is further broken up, on its passage through the 10 openings, or orifices 12, due to the heated .condition of the lower end of the member H. The member H is secured to the body portion 8, by means of the set screw l3, so that the member It may be secured in position prior to the posi- L5 tioning of the device in the opening I.

The body portion 8 is formed with a bore l5 in which the valve stem guide I5 is positioned, the valve stem guide being formed with vertical grooves l6, through which the charge moves on 20 passing to the chamber of the member H.

At the lower end of the body portion *8, is a valve seat against which the valve ll engages, the

valve being mounted on the lower end of the valve stem l8, that extends through the guide K5, the 25 upper end of the valve stem extending to a point above the member l9, where it engages the threaded plug 20 that fits into a threaded bore of the valve 2i. Thus it will be seen that due to this construction, an accurate adjustment of 30 the valve l 1 may be had at all times.

The member l9, as well as the body portion 8, is formed with an enlarged bore defining a mixing chamber into which the oil and air pass, in forming the charge. 3

In order that the valve I! will be normally held in its active or seated position, a coiled spring 22 is provided, which spring has its lower end resting on the spring seat 23, while the upper end thereof bears against the washer 24 that is held against 40 vertical movement, by means of the pin 25', that passes through the valve stem I8. Mounted on the member I9, is the upper section of the device, which is indicated by the reference character 25, and as shown, this'upper section is formed with 45 a central bore tapered at its lower end, providing a valve seat for the valve 2 i.

This valve seat of the valve 2| is formed with an annular groove 26, that communicates with the bore 21, through which oil is fed to the groove, 50 the groove being disposed substantially centrally of the seat, so that oil fed to the valve 2|, will be spread over the valve 2! in a fine film thereby insuring a thorough mixing of the oil and air fed to the mixing chamber.

The upper section 25 is formed with a passageway 28 that communicates with the bore 21, to supply oil to the bore 21, after it has been forced into the passageway and preheated. Oil is fed to the passageway, through the pipe 29, which is in communication with a suitable pump not shown, which pump is utilized for forcing the oil into the passageway.

Valve 2| is mounted at the lower end of the valve stem 30, there being provided a spring 3| for normally urging the valve stem upwardly, seating the valve 2|.

The reference character 32 designates a cap that fits'over the upper end of the valve stem 30 and is secured in position by means of the pin 33. Engaging the cap 32, is an adjustable screw 34 which operates through a threaded opening in the arm 35, which is pivotally mounted within the bearings 36 of the upper section.

Secured to the arm 35, near the base thereof, is an arm 31 that is engaged by the arm 38 mounted on the shaft 39. One end of the arm 38 is extended rearwardly at 49, where it is engaged by the member 4|, carried at the upper end of the push rod 42.

The upper end of the bore 21 is tapered providing a seat for the valve 43 that extends through the upper section 25, the valve 43 being designed to control the passage of oil, through the bore 21.

Mounted for free rotary movement on the shaft 39, is an arm 44, which is provided with an extension 45 formed with openings 46.

Associated with the arm 44, is an arm 41, which is keyed to the shaft 39 to move therewith, the arm 41 being of a length so that the free end thereof overlies the extension 45.

Carried by the arm 41 is an adjustable screw 48, that is formed with an extension 49 that fits in the openings 46, thereby connecting the arm 41 to the extension 45 to the end that the arms 44 and 4'! operate in unison.

The operating rod for operating the arm 44, is indicated by the reference character 50, and extends to a point where it may be operated by a suitable mechanism not shown, but which operates in such timed relation with the valves 2| and II, that the fuel will be fed into the cylinder, at the proper time by suction of engine piston during intake stroke of engine piston.

Movement of the shaft 39, is transmitted to the valve 43, through the arm 5|, which has a bifurcated forward end fitted over the valve 43, as clear- Ly shown by Figure l of thedrawings, the arm being designed to contact with the head 52 of the valve 43, when the shaft 39 rocks in one direction, thereby elevating the valve 43 and releasing a quantity of oil into the bore 21.

A spring arm indicated at 53 is also secured to the shaft 39 and bears against the, head of the valve 43, moving the valve to its closed position, when the shaft 39 is rocked in the opposite direction.

It will of course be understood that the shaft 39 is mounted at the upper ends of the brackets 54, that are secured to the engine head, by means of the bolts 55.

From the foregoing it will be obvious that due to the construction shown and described, a quantity of oil is held within the groove 26 where it is preheated. As the valve 2| opens, the heated oil will flow over the surface of the valve 2| and spread over the valve in a fine film, where the oil is picked up by the suction of the incoming air and carried into the mixing chamber and finally delivered into the engine cylinder and fired in the usual and well known manner.

I claim:

1. In a valve assembly for internal combustion engines, a tubular body including an upper detachable section having a. valve seat, a valve including a valve stem operating in the tubular body, a valve member operating in the upper detachable section of the tubular body, the last mentioned valve having a bore into which the upper end of the valve stem extends, an adjustable member disposed within the bore and against which the valve stem engages, yieldable means for moving the first mentioned valve to its normal closed position, a valve stem connected with the second mentioned valve, means for engaging the second mentioned valve stem for moving the valves simultaneously, means for normally moving the second mentioned valve to its closed position, and said valves adapted to control the passage of air and fuel through the tubular body portion.

2. In a valve assembly for internal combustion engines, a tubular body having a valve seat at its lower end, an upper section having a valve seat at its lower end and forming apart of the tubular body, a valve stem carrying a valve at its lower end, and adapted to seat against the first mentioned valve seat, a valve adapted to seat against the valve seat of the upper section and having a threaded bore, a threaded plug adjustably mounted within the bore and engaged by the upper end of the valve stem, limiting the movement of the valves with respect to each other, a coiled spring surrounding the valve stem and normally urging the valve stem upwardly. and said valves adapted to control the passage of air and fuel through the body portion.

3. In a valve assembly for internal combustion engines, a tubular body portion comprising a main section and an upper removable section, said sections having valve seats at their lower ends, a valve having a valve stem cooperating with the valve seat of the main section, a hollow valve cooperating with the valve seat of the upper removable section, said valve stem extending into the hollow valve, means in the hollow valve and engaged by the valve stem, whereby movement of the valves may be adjusted with respect to each other, a valve stem on the last mentioned valve, and means engaging the last mentioned stem, whereby the valves are operated simultaneously in one direction and said valves adapted to control the passage of air and fuel through the tubular body.

JOSEPH EDWARD BLANDING. 

